CVE-2022-39374 — Synapse Denial of service due to incorrect application of event authorization rules during state resolution
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the mali…
Published: 2023-05-26 · CVSS: 6.5 · CVSS 3.0
Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. If Synapse and a malicious homeserver are both joined to the same room, the malicious homeserver can trick Synapse into accepting previously rejected events into its view of the current state of that room. This can be exploited in a way that causes all further messages and state changes sent in that room from the vulnerable homeserver to be rejected. This issue has been patched in version 1.68.0
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7